A Key Role for Apoplastic H2O2 in Norway Spruce Phenolic Metabolism1[OPEN]
نویسندگان
چکیده
Teresa Laitinen, Kris Morreel, Nicolas Delhomme, Adrien Gauthier, Bastian Schiffthaler, Kaloian Nickolov, Günter Brader, Kean-Jin Lim, Teemu H. Teeri, Nathaniel R. Street , Wout Boerjan, and Anna Kärkönen Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, 00014 Helsinki, Finland Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium VIB Center for Plant Systems Biology, 9052 Ghent, Belgium Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, 90187 Umeå, Sweden Department of Biology, University of Oulu, 90014 Oulu, Finland Department of Biosciences, University of Helsinki, 00014 Helsinki, Finland Natural Resources Institute Finland (Luke), Green Technology, 00790 Helsinki, Finland
منابع مشابه
A Key Role for Apoplastic H2O2 in Norway Spruce Phenolic Metabolism.
Apoplastic events such as monolignol oxidation and lignin polymerization are difficult to study in intact trees. To investigate the role of apoplastic hydrogen peroxide (H2O2) in gymnosperm phenolic metabolism, an extracellular lignin-forming cell culture of Norway spruce (Picea abies) was used as a research model. Scavenging of apoplastic H2O2 by potassium iodide repressed lignin formation, in...
متن کاملSeasonal Changes in the Activities of Apoplastic, Cytoplasmic, Ionically and Covalently Bound Isoperoxidases from Norway Spruce (Picea abies (L.) Karst.) Needles: A Comparison between Three Collection Sites with Different Ambient Ozone Concentrations
Apoplastic, cytoplasmic, ionically and covalently bound isoperoxidases were investigated from needles o f Norway spruce (Picea abies (L.) Karst.) and a pronounced genetic variability o f the isoenzyme pattern was found. The enzymatic activity o f each group o f isoperoxidases was determined between November 1989 to November 1990 from needles o f three locations (Velmerstot, Glindfeld, Haltern) ...
متن کاملارزیابی شاخص مزیت تجزیه خانگی لاشبرگ (HFA) در رویشگاه های راش، توسکا و توده دست کاشت نوئل منطقه لاجیم
The decomposition of leaf litter has important in the ecosystem level through regulating buildup of soil organic matter, regulating of nutrient for plant growth and influencing the flux of Co2 from the soil. Several studies have introduced Home-field advantage (HFA) as an index for indicating more rapidly decomposition process of litter in its own site. In the present study, beech and alder s...
متن کاملNutrient Dynamics and Decomposition rate of Norway Spruce Needles in Stråsan and Lajim stands
Climate changes due to changes in a habitat leads to differences in the rate of decomposition and nutrient dynamics of leaflitters, which has many effects on the controlling factors of the decomposition process. In the present study, the rate of decomposition and nutrient dynamics of Norway spruce was evaluated for 363 days in the two forestation sites in the natural and foreign habitats, ...
متن کاملFoliar Phenolic Compounds in Norway Spruce with Varying Susceptibility to Chrysomyxa rhododendri: Analyses of Seasonal and Infection-Induced Accumulation Patterns
Secondary phenolic metabolites are involved in plant responses to various biotic stress factors, and are apparently important for the defense against fungal pathogens. In this study, we investigated their role in defense against the rust Chrysomyxa rhododendri in Norway spruce. The fungal pathogen undergoes a seasonal lifecycle with host shift; after overwintering in rhododendron shrubs, it att...
متن کامل